<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
  <title>ajax</title>
  <script src="https://code.jquery.com/jquery-3.1.1.min.js"></script>
  <script>

    function a1(){
      $.post({
        url:"/ajax_test/a3",
        data:{'name':$("#name").val()},
        success:function (data) {
          if (data.toString()=='OK'){
            $("#userInfo").css("color","green");
          }else {
            $("#userInfo").css("color","red");
          }
          $("#userInfo").html(data);
        }
      });
    }
    function a2(){
      $.post({
        url:"/ajax_test/a3",
        data:{'pwd':$("#pwd").val()},
        success:function (data) {
          if (data.toString()=='OK'){
            $("#pwdInfo").css("color","green");
          }else {
            $("#pwdInfo").css("color","red");
          }
          $("#pwdInfo").html(data);
        }
      });
    }

  </script>
</head>
<body>
<p>
  用户名:<input type="text" id="name" onblur="a1()"/>
  <span id="userInfo"></span>
</p>
<p>
  密码:<input type="text" id="pwd" onblur="a2()"/>
  <span id="pwdInfo"></span>
</p>
</body>
</html>